Disney / Pixar Cars Transforming Trailer and Stunt Racer Vehicle Collection: The stunts are non-stop with these sets. Each pack comes with a Stunt Racer and corresponding Trailer to double the action. The Stunt Racers perform amazing tricks-like spinning on their nose or tail or driving on two wheels; the trailers open up to become both a stunt ramp and a launcher. Together, they amp up the stunting action. Each sold separately. Collect them all.